Covid-19 vaccines offer high levels of protection for most people with underlying health conditions or who are immunosuppressed, Public Health England (PHE) has said.
New data from more than one million people in at-risk groups found that overall vaccine effectiveness against symptomatic disease was around 60% after one dose of either the AstraZeneca or Pfizer/BioNTech jabs, and did not fall substantially with age, PA news reports.
After two doses for those aged 16 to 64, Pfizer/BioNTech offered 93% protection, while AstraZeneca offered 78%. For those aged 65 and over, two doses of Pfizer/BioNTech offered 87% protection while AstraZeneca offered 76%.
For people who are immunosuppressed, vaccine effectiveness after a second dose was 74%, with similar protection to those who are not in an at-risk group.
This rises from 4% after a first dose, showing the importance of a second dose.
Some health conditions are linked to an increased risk of hospital admission and death from Covid-19, including diabetes, severe asthma, chronic heart, kidney or liver disease, neurological…
